Science ❯Geology ❯Seismology

Earthquake Measurement

Magnitude Scale Magnitude Richter Scale US Geological Survey Impact Assessment Seismic Waves Magnitude Scales Tsunami Generation Magnitude and Depth Tectonic Plates

Up to 6.1-Magnitude Quake Strikes Off Hokkaido Coast

Japan’s emergency systems responded swiftly to the shallow tremor off Hokkaido without triggering a tsunami warning

Magnitude 6.1 Earthquake Strikes Off Hokkaido Coast, No Tsunami Warning

6.1-Magnitude Quake Off Lima Coast Kills One and Injures Dozens

5.9 Magnitude Quake Strikes Eastern Taiwan

3.4-Magnitude Earthquake Jolts Pinole, California

Magnitude 3.2 Quake Shakes Campi Flegrei at Dawn

Magnitude 6.1 Earthquake Strikes Off Crete, No Major Damage Reported

Magnitude 6.2 Earthquake Strikes Off Crete, Tsunami Alert Lifted

Magnitude 4.4 Earthquake Triggers Evacuations and State of Emergency at Campi Flegrei

Magnitude 6.1 Earthquake Strikes Near Kasos, Greece

3.3 Magnitude Earthquake Shakes East-Central Illinois

4.1-Magnitude Earthquake Shakes Eastern Tennessee, Felt Across Multiple States

Evacuation Orders Lifted After Powerful Earthquake Near Southern South America

3.9-Magnitude Earthquake Rattles Utah and Neighboring States

Magnitude 5.0 Earthquake Shakes Mendoza Province, No Damage Reported

M6.3 Earthquake Strikes Near Ecuador’s Esmeraldas Coast, No Tsunami Threat

5.8 Magnitude Earthquake Strikes Afghanistan, Tremors Felt Across South Asia

Southern California Hit by 5.2 Magnitude Earthquake Near Julian

Tajikistan Earthquake Revised to Magnitude 5.9, No Damage Reported

Magnitude 6.9 Earthquake Strikes Papua New Guinea, Tsunami Warnings Issued